KR20200080310A - Physical layer procedures for user equipment in sleep mode - Google Patents

Abstract

The user equipment may send a notification to the network node that the user equipment is entering the operation of the battery saving mode. Reduced physical layer procedures can be implemented based on reduced capabilities represented by user equipment. Reduced physical layer procedures can also be implemented based on reconfiguration of network nodes of parameters to enable activation of reduced physical layer procedures. The user equipment can also send recommendations of reduced physical layer procedures to the network node.

Description

Physical layer procedures for user equipment in sleep mode

Cross reference to related applications

This application is filed on December 13, 2017, the entire application of which is incorporated herein by reference and entitled U.S. Application Serial No. 15/840,068 entitled "Physical Layer Procedures for User Equipment in Power Saving Mode" Claim priority.

This application relates generally to energy management in user equipment, and more particularly, to performing reduced physical layer procedures for user equipment in power saving mode.

In cellular communications, wireless technologies have started since the beginning of analog cellular systems in the 1980s, starting with the first generation (1G) in the 1980s, the second generation (2G) in the 1990s, and the third generation (3G) in the 2000s. And the fourth generation (4G) of the 2010s (including Long Term Evolution (LTE) and variants of LTE), rapidly growing and evolving. Fifth generation (5G) access networks, which may also be called new radio (NR) access networks, are currently being developed, meeting the demand for exponentially increasing data traffic, especially mobile broadband (MBB) and machine type communications. It is expected to address a very wide range of use cases and requirements, including fields (eg, including Internet of Things (IOT) devices).

In the face of advances in networking, the long-standing problem of battery consumption by user equipment (UE) can have a direct impact on the user experience. At the device level, "sleep mode" or "battery saving mode" is an optimization scheme widely adopted in different smartphone operating systems. The operating system (OS) of the UE identifies the amount of remaining charge left on the battery, and when the battery level is below a certain threshold, the OS extends the battery life (or slows down the battery discharge rate) and the UE determines Triggers a power saving mode that causes actions to be performed. Currently, UEs in sleep mode reduce animation effects, reduce screen brightness, shut down device applications, prevent device applications from running (e.g., the camera is not used when battery charge is too low) Disable it), or reduce network inquiries (eg, notifications, etc.) for all applications to extend battery life.

The above-described background regarding wireless networks is merely intended to provide a situational overview of some current problems, and is not exhaustive. Other situation information may become more apparent by reviewing the following detailed description.

It is an object of the present invention to provide for the performance of reduced physical layer procedures for user equipment in a power saving mode.

The following detailed description and the annexed drawings set forth in detail certain illustrative aspects of the subject matter. However, these aspects represent only some of the various ways in which the principles of the subject matter can be implemented or adopted. Other aspects, advantages, and novel features of the disclosed subject matter will become apparent from the following detailed description when considered in conjunction with the drawings provided. In the following description, for purposes of explanation, numerous specific details are set forth to provide an understanding of the specification. However, it may be apparent that the present specification may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing the present specification. For example, the methods described herein (eg, processes and logic flows) include devices comprising programmable processors executing machine-executable instructions to enable performance of the operations described herein. Field (eg, user equipment (UE), network node device, etc.). Examples of such devices may be devices including circuits and components described in FIGS. 10 and 11.

This patent application describes reduced (or some can use terminology simplified) physical layer communication procedures (reduced physical layer communication procedures) that can be implemented when a user equipment (UE) enters an operation of battery power saving mode. ). Example reduced physical layer procedures (also referred to as physical layer communication procedures) may be implemented based on the reduced capabilities indicated by the UE. Exemplary embodiments of reduced physical layer procedures reconfigure the parameters of the network node to enable activation of the reduced physical layer communication procedures when the network node is notified by the UE that it is entering battery saving mode. It may be implemented based on. In example embodiments, the UE may also send recommendations of reduced physical layer procedures to the network node that the network node may accept, deny or add in whole or in part.

Non-limiting and non-exhaustive embodiments of the present specification are described with reference to the following drawings, and unless otherwise specified, similar reference numerals refer to similar parts throughout the multiple drawings.
1 illustrates an example wireless communication system in which a network node device (eg, network node) communicates with a user equipment (UE) or user devices in accordance with various aspects and embodiments of the present specification.
2 illustrates an example of radio resource control (RRC) signaling and establishment process according to various aspects and embodiments of the present specification.
3 is an example transaction diagram in which a user equipment (UE) can determine a reduced set of physical layer operational capabilities when the UE is operating in battery saving mode, in accordance with various aspects and embodiments herein.
4 is another example transaction in which a network device may reconfigure parameters to enable activation of reduced physical layer communication procedures when the UE is operating in battery saving mode, in accordance with various aspects and embodiments herein. diagram.
5 is another example transaction diagram in which the UE provides recommendations for reduced physical layer communication procedures when the UE is operating in battery saving mode, in accordance with various aspects and embodiments herein.
FIG. 6 illustrates examples of reduced physical layer communication procedures that may be implemented when the UE is operating in battery saving mode, in accordance with various aspects and embodiments herein.
7-9 are example flow diagrams illustrating operations that may be performed in accordance with various aspects and embodiments herein.
10 is an exemplary block diagram of an exemplary mobile handset, which may be a UE, in accordance with various aspects and embodiments herein.
11 is an exemplary block diagram of a computer that may be a network node that may be operable to execute processes and methods, in accordance with various aspects and embodiments herein.

1 shows an exemplary mobile communication system 100 (also referred to as mobile system 100) in accordance with various aspects and embodiments of the present specification. In example embodiments (also referred to as non-limiting embodiments), the mobile system 100 may include one or more mobile networks generally operated by communication service providers (eg, the mobile network 106). It may include a mobile (also referred to as cellular) network 106 that may include. Mobile system 100 may also include one or more user equipment (UE) 102 _1-n (also referred to as user devices). UEs 102 _1-n communicate with each other through one or more network node devices (also referred to as network nodes) 104 _1-n of the mobile network 106 (singly referred to as network node 104). can do. Dotted arrows from network nodes 104 _1-n to UE 102 _1-n indicate downlink (DL) communications, and solid arrows from UE 102 _1-n to network nodes 104 _1-n These represent uplink (UL) communications.

The UE 102 may include any type of device capable of communicating with, for example, the mobile network 106 as well as other networks (see below). The UE 102 can have one or more antenna panels with vertical and horizontal elements. Examples of UE 102 include target device, device to device (D2D) UE, machine type UE, or machine to machine (M2M) communications, personal digital assistant (PDA), tablet, mobile terminal, smartphone, laptop mounting Equipment (LME), Universal Serial Bus (USB) dongles with mobile communications, computers with mobile functions, mobile devices such as cell phones, dual-mode mobile handsets, laptops with built-in laptop equipment (LEE, eg mobile broadband adapters), Tablet computers with mobile broadband adapters, wearable devices, virtual reality (VR) devices, heads-up display (HUD) devices, smart cars, machine-type communication (MTC) devices, and the like. UE 102 may also include IOT devices that communicate wirelessly.

The mobile network 106 includes cellular networks, femto networks, picocell networks, microcell networks, Internet Protocol (IP) networks, Wi-Fi networks associated with the mobile network (eg, by a mobile handset). Various types of heterogeneous networks implementing various transmission protocols, including, but not limited to, implemented Wi-Fi "hotspots") and the like. For example, in at least one implementation, mobile network 100 may be or include a large wireless communication network spanning various geographic areas, and various additional devices and components (eg, additional Network devices, additional UEs, network server devices, etc.).

Referring also to FIG. 1, the mobile network 106 is configured with various cellular systems, technologies, and technologies to enable wireless radio communications between devices (eg, UE 102 and network node 104 ). Modulation schemes can be employed. Although exemplary embodiments are described for 5G new radio (NR) systems, the embodiments may be applicable to any radio access technology (RAT) or multi-RAT system in which the UE operates using multiple carriers. For example, the mobile system 100 can be any of a variety of things, and can operate according to standards, protocols (also called schemes), and network architectures, and the network architectures are global systems (GSMs). for mobile communications, 3GSM, GSM Enhanced Data Rates for Global Evolution (EDGE) Wireless Access Network (GERAN), Universal Mobile Telecommunications Service (UMTS), General Packet Radio Service (GPRS), Evolution-Data Optimized (EV-DO) , Digital Enhanced Cordless Telecommunications (DECT), Digital AMPS (IS-136/TDMA), Integrated Digital Enhanced Network (iDEN), Long Term Evolution (LTE), LTE Frequency Division Duplexing (LTE FDD), LTE Time Division Duplexing (LTE) TDD), Time Division LTE (TD-LTE), LTE Advanced (LTE-A), Time Division LTE Advanced (TD-LTE-A), Advanced eXtended Global Platform (AXGP), High Speed Packet Access (HSPA), Code Division Multiple Access ( CDMA), wideband CDMA (WCMDA), CDMA2000, time division multiple access (TDMA), frequency division multiple access (FDMA), multi-carrier code division multiple access (MC-CDMA), single carrier code division multiple access (SC-CDMA) , Single carrier FDMA (SC-FDMA), orthogonal frequency division multiplexing (OFDM), discrete Fourier transform spread OFDM (DFT-spread OFDM), single carrier FDMA (SC-FDMA), filter bank based multi-carrier (FBMC), zero Tail DFT-spread-OFDM (ZT DFT-s-OFDM), unique word OFDM (UW-OFDM), unique word UW DFT-Spread-OFDM (DFT-), Cyclic Prefix OFDM (CP-OFDM), Resource-block-filtering OFDM, Generalized Frequency Division Multiplexing (GFDM), Fixed-mobile Convergence (FMC), Universal Fixed-UFM It can operate according to network architectures including, but not limited to, mobile convergence (RAB), multi radio bearers (RAB), Wi-Fi, and worldwide interoperability for microwave access (WiMax).

Referring still to FIG. 1, in example embodiments, UE 102 may be communicatively connected (or, in other words, connected) to network node 104 of mobile network 106. Network node 104 may have a cabinet and other protective enclosures, antenna mast, and multiple antennas to perform various transmission operations (eg, MIMO operations). Each network node 104 may serve several cells, also called sectors, depending on the configuration and type of antenna. The network node 104 may include NodeB devices, base station (BS) devices, mobile stations, access point (AP) devices, and radio access network (RAN) devices. The network node 104 is also an MSR BS, eNode B device (e.g., evolved NodeB), network controller, radio network controller (RNC), base station controller (BSC), repeater, donor nod controlling relay ), base transceiver station (BTS), access point, transmit point (TP), transmit/receive point (TRP), transmit node, remote radio unit (RRU), remote radio head (RRH), distributed antenna system (DAS) ). In 5G terminology, a network node is referred to as a gNodeB device by some.

Referring still to FIG. 1, in various embodiments, mobile network 106 may be configured to provide and employ 5G cellular networking features and functions. 5G wireless communication networks are expected to meet the exponentially growing demand for data traffic and make people and machines enjoy gigabit data rates with near-zero latency. Compared to 4G, 5G supports more diverse traffic scenarios. For example, for various types of data communications between conventional UEs (eg, phones, smartphones, tablets, PCs, televisions, Internet-enabled televisions, etc.) supported by a 4G network. In addition, 5G networks can be employed to support data communication between unmanned vehicle environments, as well as smart vehicles associated with machine type communications (MTCs). Given the different communication needs of these different traffic scenarios, the ability to dynamically configure waveform parameters based on traffic scenarios while maintaining the benefits of multi-carrier modulation schemes (eg, OFDM and related schemes) is fast. / Can provide a significant contribution to the low latency requirements of high capacity and 5G networks. By the waveforms that divide the bandwidth into several sub-bands, different types of services can be accommodated in different sub-bands by the most suitable waveform and numerology, resulting in improved spectrum utilization for 5G networks. .

Referring still to FIG. 1, to meet the demands for data-centric applications, the features of the proposed 5G networks are: increased peak bit rate (eg, 20 Gbps), larger data amount per unit area (eg , High system spectral efficiency-for example, about 3.5 times the spectral efficiency of long term evolution (LTE) systems), high capacity, lower battery/power consumption (allowing more device access both simultaneously and instantaneously) Reducing energy and consumption costs), better connectivity regardless of the geographic area in which the user is located, higher number of devices, lower infrastructure development costs, and higher reliability of communications. Thus, 5G networks can allow the following: 1Gbps, large-scale sensor deployments where data rates of tens of megabits per second will simultaneously be provided to tens of thousands of users, for example dozens of workers in the same office layer. Hundreds of thousands of simultaneous connections to be supported; Improved coverage, improved signaling efficiency; Reduced latency compared to LTE should be supported.

The upcoming 5G access network may use higher frequencies (eg,> 6 kHz) to help increase capacity. Currently, the band of spectrum between 30 gigahertz and 300 GHz, which is the majority of the millimeter wave spectrum, is not fully utilized. Millimeter waves have short wavelengths ranging from 10 millimeters to 1 millimeter, and these mmWave signals experience severe path loss, penetration loss, and fading. However, the shorter wavelength at mmWave frequencies also allows more antennas to be packed with the same physical dimensions, which allows large-scale spatial multiplexing and many directional beamforming.

2 shows a process for establishing a radio resource control (RRC) connection. This process is implemented, for example, in LTE networks. The functions of the RRC protocol include, for example, connection establishment and release functions, broadcast of system information, radio bearer establishment, reconfiguration and release, RRC connection mobility procedures, paging notification and release, and outer loop power control. Using signaling functions, the RRC can configure user and control planes according to network conditions and enable implementation of radio resource management (RRM) strategies. If the UE (e.g., UE 102) needs resources (e.g., for circuit switched or packet switched calls), it can request resources from the network. To perform these, the general UE first engages in the RCC connection establishment procedure as shown in FIG. 2.

After being switched on, in step 210, the UE synchronizes to each frequency and checks if the frequency is from the correct operator who wants to connect. If synchronized, in step 220 the UE reads the master information block (MIB) and system information blocks (SIBs). The process then proceeds to a random access procedure in step 230, where the network knows for the first time that the UE is attempting to access the network, so the network provides temporary resources to the UE for initial communication. When the random access procedure is completed, next, the RRC connection establishment procedure 240 informs the UE exactly what the network wants (eg, attachment, service request, tracking area update, etc.).

Still referring to FIG. 2, RRC connection establishment 240 is a three-way handshake procedure including RRC connection request, RRC connection establishment, and RRC connection establishment completion. In the RRC connection request, the UE provides its identity and the cause of the connection establishment. The RRC connection establishment message includes configuration details for the signaling radio bearer (eg, SRB1) so that later messages can be transmitted through the signaling radio bearer.

Different amounts of radio resources available to the UE can be associated with different RRC states. Since different amounts of resources are available in different states, the quality of service the user experiences, and the energy consumption of the UE are affected by these RRC states. According to exemplary embodiments herein, RRC signaling may be used to enable/disable and configure reduced physical layer procedures for the UE when the UE indicates that it is in power saving mode.

As mentioned above, by entering the power saving mode, the UE can save a lot of energy consumption with reduced animation, lower screen brightness, and the like. However, this optimization is mainly at the application layer, and in the current LTE physical layer design, the physical layer optimization for the low power mode UE has not been considered. In other words, the current LTE UE can enter sleep mode, but operations on the physical layer are still performed in a normal manner until the UE no longer has enough battery charge to engage in any communications with the network. Even in sleep mode, at the physical layer for transmissions, the UE is still required to perform full blind decoding on the physical downlink control channel (PDCCH) (44 times the blind decoding), and still physical down using the maximum MIMO layers It is required to prepare to receive a link shared channel (PDSCH) transmission, attach to the transport block size as indicated in the UE capability message, and the like. Similarly, the UE is still required to transmit over a physical uplink shared channel (PUSCH) at high transmit power or the like. In short, operations at the physical layer for communications between the UE and the network node do not take into account the life of the battery (i.e., whether the battery charge is low).

According to various aspects and embodiments of the present specification, a UE knows that it is in “sleep mode” (eg, RRC) to request or determine activation of reduced physical layer procedures (with reduced performance). Signaling). When a battery's charge falls to a certain threshold (falling below a certain threshold, decreasing below a threshold, moving to a threshold level of charging, etc.), the module in the UE's operating system module or the UE's general application layer will You can enable the transmission of messages over the network (eg, to a network node) to indicate that you are entering the mode. Following this signaling, the network and UE can negotiate and handshake on the details of the reduced procedures. Some example embodiments may enable activation of reduced physical layer procedures, mainly with differences in embodiments regarding which device (eg, UE or network node) determines reduced physical layer procedures. Together, the physical layer procedures will be reduced and details of the reduced procedures will be implemented.

3 illustrates an example transaction in which a UE (eg, UE 102) can determine which reduced physical layer procedures should be implemented when it is in sleep mode. The UE can detect a decrease in the charge level of its battery that exceeds (or decreases to) the threshold level. In example embodiments, such detection may be enabled by a software application (or software module) residing in the UE (eg, at the application layer). In response to a decrease in the charge level, the UE may enable sending a first notification to the network node (eg, network node 104) that the UE is entering an operation in battery saving mode. For example, referring to FIG. 3. In transaction 1, the UE may transmit a signal (eg, RRC signal) indicating to the network (eg, network node 104) that the UE is entering battery saving mode. In response to a signal from the UE that the UE is entering battery saving mode, the network node may trigger UE capability query signaling. In transaction 2, the network node may acknowledge receipt of the notification that the UE is entering an operation in battery saving mode. In transaction 3, for example, a network node can send a signal to the UE to query what its physical layer capabilities are. In some example embodiments, a signal and acknowledgment querying the capabilities of the UE may be sent as a transaction. In response, the UE may determine in step 305 a reduced group of physical layer operational capabilities that is less than the current group of physical layer operational capabilities (the current group is associated with a battery-non-saving mode). As an example, a reduced group of physical layer operational capabilities is on a physical uplink channel (eg, a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), etc.) from a user equipment to a network device. Can be related to transmissions. The reduced group of physical layer operational capabilities may also be associated with a physical downlink channel (eg, physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), etc.) from the network device to the user equipment. . As another example, they may also be associated with a channel state information feedback process (eg, CSI feedback procedure) that determines parameters related to the protocol for transmission. And as another example, reduced procedures may also be associated with radio resource management measurements that monitor signals for the quality of transmissions (eg, RRM related procedures). Exemplary embodiments of reduced physical layer procedures (eg, carrier aggregation related procedures, carrier dual connectivity related procedures, and higher layer related procedures, etc.), according to various aspects and embodiments herein, are also illustrated. 6 and further including its accompanying text. After determining its capabilities (eg, determining a reduced group of physical layer operational capabilities), the UE may enable transmission of a second notification informing the network device of the reduced group of physical layer operational capabilities. Referring to FIG. 3, for example, in response to a query signal, the UE may report his capability in transaction 4 as a subset of his full capabilities (some of which are described below with reference to FIG. 6). , UE capabilities can be implemented by the UE. In this exemplary embodiment, since UE functions are part of the implementation anyway, it can be a simple standardization effort, and these exemplary embodiments relate to determining what the UE will implement. Thus, in these exemplary embodiments of FIG. 3, the UE is hardly left to the network node because it follows what the UE requested as the updated capability. Everything can be left to the UE to determine what the new features are.

The examples described above in FIG. 3 relate only to the UE's proficiency when implementing reduced physical layer procedures, and the simplifications relate to what the UE provides as its functions, described below with respect to FIGS. 4 and 5 below As is, in other example embodiments, the network node has more decisions as to which functions to apply related to reduced physical layer procedures.

4, in exemplary embodiments according to various aspects and embodiments of the present specification, using individual RRC signaling, a network node (eg, network node 104) has a reduced physical layer. The detailed configurations of the procedures can be determined, and in some embodiments the configurability of various reduced physical layer procedures can be determined in the specification of a communication standard (eg, 5G standards). Referring to FIG. 4, in transaction 1, the UE may notify (or provide an indication) that it is entering a battery saving mode (eg, as an RRC signaling message for a network node). The network node may receive this notification that the UE (eg, UE 102) is entering an operation in battery saving mode.

In response to receiving the notification, it may respond by sending an acknowledgment to the UE in transaction 2 indicating receipt of the notification that the UE is entering an operation in battery saving mode.

Thereafter, the network node at step 410, the reduced physical layer communication including fewer procedures than the physical layer communication procedures used when the UE is not operating in battery saving mode (eg, by reconfiguring RRC parameters). Determine the procedures. Reduced physical layer communication procedures include network and first transmissions over a physical uplink channel (eg, a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), etc.) from a user equipment to a network device. Uplink and downlink procedures applicable to second transmissions through a physical downlink channel from a node to a user equipment (eg, a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), etc.) It can contain. The reduced physical layer communication procedures may include a channel state information feedback procedure (eg, CSI feedback procedure) for determination of first parameters related to a protocol for first transmissions and second transmissions. The reduced physical layer communication procedures may include radio resource management procedures applicable to radio resource management measurements used to monitor signals related to the quality of the first transmissions and the second transmissions (eg, RRM related). step). Exemplary embodiments of reduced physical layer procedures (eg, carrier aggregation related procedures, carrier dual connectivity related procedures, and higher layer related procedures, etc.) according to various aspects and embodiments of the present specification, It is further described below in connection with FIG. 6 and including accompanying text.

Still referring to FIG. 4, after a network node has determined reduced physical layer communication procedures, the network node may reconfigure parameters to enable activation of the reduced physical layer communication procedures by the network node and at the UE. For example, still at step 410, the network node may reconfigure RRC parameters to simplify some of the physical layer procedures (eg, RRC signaling, as further described below with respect to FIG. 6). Likewise, a reduced number of blind decoding that the UE should perform, or a smaller maximum transport block size and MIMO layers, etc. may be specified).

In the exemplary embodiments of FIG. 4, even essential functions can be reduced. Even if the network node does not know the implementation details known by the UE, everything can be left to the network node to determine what the new set of UE functions will be.

5 provides an illustration of other example embodiments in accordance with various aspects and embodiments herein, where the UE (eg, UE 102) recommends details of the configuration of the reduced physical layer procedures. do. First, the UE can detect that the battery charging level of the user equipment falls below a threshold. In response to the charge level falling below the threshold, in transaction 1, the UE is notified that the user equipment is entering an operation in battery power conservation mode that consumes less battery power than in operation in standard power mode (e.g. , As an RRC signaling message).

The network node may enable sending a confirmation response to the UE indicating that a notification has been received in transaction 2 that the user equipment is entering battery conservation mode.

The network node may send a signal prompting the UE to provide details of the configuration of the reduced physical layer procedures in transaction 3. In some example embodiments, an acknowledgment and prompt signal can be sent in the same transmission. In response to the prompt, the UE may enable sending a signal to the network node device that includes a recommendation of fewer first physical layer communication procedures than the second physical layer procedures applicable to the operation of standard power mode. . For example, in transaction 4, the UE may send configuration details corresponding to the reduced physical layer procedures, which may be included in the list of reduced physical layer procedures and corresponding configuration details, to the network node. Recommendation of the first communication procedures is via a physical uplink channel (eg, physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), etc.) from the user equipment to the network node device and from the network node device. It may relate to transmissions over a physical downlink channel to a user equipment (eg, physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), etc.). Recommendation of the first communication procedures may involve analysis of channel state information feedback (eg, CSI feedback) to determine parameters related to the protocol for transmissions. Recommendation of the first communication procedures may relate to radio resource management measurements to monitor signals related to the quality of transmissions (eg, RRM related procedures). Exemplary embodiments of reduced physical layer procedures (eg, carrier aggregation related procedures, carrier dual connectivity related procedures, and higher layer related procedures, etc.) according to various aspects and embodiments of the present specification are also illustrated. 6 and further, including accompanying text.

Still referring to FIG. 5, in response to the recommendations, the network node may accept or reject the recommendations at step 510. The reduced physical layer procedures configured by the network node may be different groups or additional groups from those requested by the UE. Thus, in these example embodiments, UEs can make recommendations, but it is still up to the network node to decide which recommendations to apply. Thus, in these exemplary embodiments of FIG. 5, the UE may recommend simplifying most power consuming procedures (different UE vendors may have different power consumption profiles for each physical layer procedure). ), in response, the network node can accept/deny, or use different configurations, or even add a new reduced procedure depending on the overall situation of the networks.

6 provides a list of examples of reduced physical layer procedures (eg, which may be implemented in relation to the example embodiments of FIGS. 4 and 5 ). To the extent mentioned, each example can include a UE (eg, UE 102) and a network node (eg, network node 104).

Exemplary embodiments may include a reduced physical downlink control channel (PDCCH) procedure 605. In networks of an exemplary embodiment (eg, network 106), the PDCCH allocates resources for UEs (eg, UE 104 _1-n ) included in the downlink control information (DCI) message. Carries. Multiple PDCCHs may be transmitted in the same subframe using control channel elements (CCE), each of which is 9 sets of 4 resource elements known as resource element groups (REGs). The decoding of DCI in LTE is based on a process defined as blind decoding, which relies on multiple decoding attempts for multiple PDCCH candidate locations for multiple defined DCI formats. In general, the UE identifies all possible combinations of PDCCH locations, PDCCH formats, and DCI formats, and operates on these messages with accurate periodic redundancy checks (CRC). Performing this "blind decoding" of all possible combinations will require the UE to make many PDCCH decoding attempts in every subframe. The reduced PDCCH physical layer procedure may be associated with a reduction in the number of blind decoding operations performed by the UE in battery saving mode, whereby the remaining battery to be otherwise consumed as part of attempts to process all blind decoding Reduce the filling amount. In addition, with respect to the PDCCH, the group common PDCCH may carry the current uplink-downlink configuration (which may be an indicator that is transmitted periodically). In example embodiments, the UE may begin decoding the group common PDCCH to reduce the number of blind decoding procedures.

In example embodiments, the reduced physical downlink control channel (PDCCH) procedure 605 may also include a reduction in the number of control channel resource sets. For PDCCH, the network side generally configures K control channel resource sets for each UE (e.g., UE 102), where K is a positive integer greater than or equal to 1, and each control channel resource set is It includes at least one physical resource block pair (PRB pair). By way of example, the network side may configure three control channel resource sets for the UE, and each control channel resource set includes four PRBs (physical resource block, physical resource block) pairs. In example embodiments, while in battery saving mode, the UE may reduce the number of control channel resource sets used (eg, use 2 instead of 3).

Referring to FIG. 6, example embodiments may include a reduced physical downlink shared channel (PDSCH) related procedure 610. In the networks of an exemplary embodiment (eg, network 106), the PDSCH is dynamic and UE data (eg, eg, assigned to users according to the opportunity (often referred to as “best effort”)) It is the main data bearing channel that delivers data). The PDSCH carries data in transport blocks (TB) corresponding to a machine layer data protocol unit (MAC PDU) and is transmitted from the MAC layer to the PHY layer once per transmission time interval (TTI), which may include 1 millisecond. Can be. Thus, the transport block size can be related to the amount of data determined to be transmitted in a time frame.

The reduced PDSCH-related procedure 610 may include a reduction in the transport block size for transmissions over a physical downlink channel. The size of the transport block can be selected using several parameters derived from several different parameters. In general, some of the parameters considered to determine the transport block size are possible based on the amount of data available from the user, the channel quality indicator (CQI) reported by the UE (e.g., UE 102). Modulation scheme, and the number of resource blocks available in the physical resource grid. In exemplary embodiments according to the present invention according to various aspects and embodiments herein, the transport block size is also determined by whether the UE is in battery saving mode. In addition to reducing the size, the bandwidth for PDSCH resource allocation (bandwidth represents the rate at which data is transmitted between the UE and the network node) can also be reduced, thereby reducing the amount of data that can be transmitted during a particular period. Decrease (for example, slow the transmission speed). Therefore, in the reduced PDSCH-related procedure 610, when the UE enters the battery saving mode, the size of the TB may be reduced. Reduction of the amount of bandwidth allocated to user equipment from a network device (eg, bandwidth reduction for PDSCH resource allocation) may also be implemented.

The reduced PDSCH-related procedure 610 may also include correction of error handling. To protect against propagation channel errors, which results in this loss of transmitted data, the PDSCH procedure can retransmit any lost data packets, including the use of forward error correction (FEC) and error control. One such technique is a hybrid automatic repeat request (hybrid ARQ or HARQ), which is a combination of fast FEC coding and ARQ. If the transmission contains an error, the retransmission request is sent back to the UE (eg, UE 102) to retransmit the transmission. In synchronous uplink systems, standards exist for scheduling a certain amount of time to be allocated to transmit retransmission requirements. To meet the requirement of synchronous uplink retransmission, a network node (e.g., network node 104) generally requires that the retransmission be transmitted, the network node sends the UE an eighth transmission time interval (or first It attempts to complete processing of the uplink channel data within a 3ms time period so that it can inform that it will retransmit the transmission up to 8ms) after the transmission is transmitted. If this time requirement is not met, the mobile device cannot retransmit data until the 16th transmission time interval or 16ms after the first transmission is transmitted, which may slow uplink throughput bandwidth. In exemplary embodiments, in operation when the UE is in battery saving mode, the reduced PDSCH-related procedure 610, in the error checking protocol, is the amount of time the network node device waits before sending a request for retransmission of data. Increase. This may be, for example, an enlargement of HARQ processing time (for example, an enlargement of an amount of time for processing uplink channel data exceeding 3 ms).

Still referring to FIG. 6, in exemplary embodiments, the reduced PDSCH-related procedure 610 may include a reduction in the number of MIMO transmission layers, or a reduction in the number of antennas used. Multi-antenna technologies using multiple transmit and receive antennas have been implemented for current systems and can play a large role in upcoming 5G networks. The use of multiple input multiple output (MIMO) techniques can improve the spectral efficiency of the transmission, thereby significantly increasing the overall data transfer capacity of wireless systems. MIMO technology uses a commonly known notation (M x N) to indicate the MIMO configuration by the number of transmit antennas (M) and the number of receive antennas (N) on one end of a transmission system. Typical MIMO configurations used for various technologies are: (2 x 1), (1 x 2), (2 x 2), (4 x 2), (8 x 2) and (2 x 4), (4 x 4),(8 x 4). In example embodiments, the reduced physical downlink shared channel (PDSCH) related procedure 610 may have more than one antenna on the transmit and receive side, but includes different ways in which fewer than all antennas are used. Can be used. For example, a configuration can have two downlink antennas, and these two antennas can be used in a variety of ways. In addition to using antennas in a 2 x 2 MIMO scheme, two antennas can also be used in a diversity configuration rather than a MIMO configuration. Even with multiple antennas, a particular scheme can use only one of the antennas (eg, transmission mode 1 in LTE specification using a single transmit antenna and a single receive antenna). Or, for example, multiple transmitters may be used at the transmitting side, but only one antenna at the receiving side (eg, multiple input single output (MISO)) may be used. Additionally, in multi-antenna techniques, data can be divided to be transmitted over multiple antennas, and each data stream processed and transmitted through the antenna is referred to as a transmission layer. The number of transmit layers is generally the number of transmit antennas. Data can be divided into several parallel streams, each stream containing different information. In other types, incoming data is duplicated and each antenna transmits the same information. The term spatial layer refers to a data stream containing information not included in other layers. The rank of transmission is the same as the number of spatial layers in LTE spatial multiplexing transmission, or the number of different transmission layers transmitted simultaneously in different ways. As an example, a multi-antenna transmitter can simultaneously transmit the same content or information from all four antennas to user equipment. The reduced PDSCH-related procedure 610 may be a reduction in the number of transmission layers used in a multiple input multiple output antenna transmission protocol (eg, the number of transmission layers may be reduced; for example, the same content Instead of sending 4 streams of data to have, only 2 are sent). As another example, in the reduced PDSCH-related procedure 610, even when various streams are being transmitted, the number of antennas participating in the transmission of the various streams may be reduced. When the battery saving mode is activated (or in other words, in operation), the multi-antenna schemes that would otherwise be selected for a particular transmission that will not be used for the scheme are less by the UE (e.g., UE 102). Includes battery consumption. Thus, the reduced PDSCH-related procedure 610, which can be activated when the UE enters battery saving mode, may include the use of antenna schemes that reduce the number of antennas used and also reduce the number of transmissions. Power consumption can be reduced when the battery is already at a low charge.

Still referring to FIG. 6, example embodiments of reduced physical layer procedures may include reduced channel state information (CSI) feedback procedure 620. In some embodiments of a mobile network that includes LTE (eg, network 106), the technique is codebook-based precoding (open loop systems do not require knowledge of the channel at the transmitter, whereas closed loop systems are And closed-loop spatial multiplexing (which requires channel knowledge at the transmitter, provided by the feedback channel by the UE). In this technique, a reference signal (also called a pilot signal or pilot) is first transmitted from a network node (eg, network node 104) to a UE (eg, UE 102). Downlink reference signals are predetermined signals that occupy specific resource elements within a downlink time-frequency grid. The reference signal RS may or may not be beam-formed in the user equipment. The reference signal may be cell specific or UE specific in relation to the profile of the user equipment 102 or some type of mobile identifier. There are several types of downlink reference signals transmitted in different ways and used for different purposes by the receiving terminal. The channel state information reference signals (CSI-RS) are specifically intended to be used by terminals to obtain channel state information (CSI) and beam specific information (beam RSRP). In 5G, CSI-RS is UE specific to have significantly lower time/frequency density. Demodulation reference signals (DM-RS), sometimes referred to as UE-specific reference signals, are intended to be used by terminals, particularly for channel estimation for a data channel. The label "UE-specific" relates to the fact that each demodulation reference signal is intended for channel estimation by a single terminal. The specific reference signal is then transmitted to the terminal only within resource blocks allocated for data traffic channel transmission. In addition to these reference signals (CSI-RS, DM-RS), other reference signals used for various purposes, namely phase tracking reference signals, multicast-broadcast single-frequency network (MBSFN) signals, and positioning There are reference signals. From the reference signals, the UE can calculate channel estimates and parameters needed for channel state information (CSI) reporting. In LTE, CSI reporting includes, for example, precoding matrix index (PMI), channel quality indicator (CQI), rank information (RI), and the like. The indicator of channel status information (eg, PMI in LTE) can be used for selection of transmission parameters for different data streams transmitted between the network node and the UE. In techniques using codebook based precoding, the network node and the UE use different codebooks that can be found in the standard specification, each of which has different types of MIMO matrices (eg, precoding matrix for 2x2 MIMO) Codebook). The codebook can include entries of precoding vectors and matrices that are known (included) at the node and UE site and multiplied with the signal in the pre-coding phase of the network node. The decision as to which of these codebook entries to choose is made at the network node based on the CSI feedback provided by the UE, since the CSI is known to the receiver but not to the transmitter. Based on the evaluation of the reference signal, the UE sends feedback including recommendations for a suitable pre-coding matrix among the appropriate codebooks (eg, points to the index of the precoder of one of the codebook entries). This UE feedback identifying the precoding matrix is called a precoding matrix indicator (PMI). Accordingly, the UE is evaluating which pre-coding matrix is more suitable for transmissions between the network node and the UE. Additionally, the CSI feedback may also include an indicator of channel quality (eg, channel quality indicator (CQI) in LTE), which is the channel of the channel between the network node and the user equipment for link adaptation at the network side. Quality. Depending on the value reported by the UE, the node transmits data with different transport block sizes. When a node receives a high CQI value from the UE, it transmits data with a larger transport block size, and vice versa. The CSI feedback may also include an indicator of rank (rank indicator (RI) in LTE terminology), which provides an indication of the rank of the channel matrix, which rank is between the network node and the UE, as discussed above. The number of different transmission data streams (layers) transmitted in parallel or simultaneously (ie, the number of spatial layers). RI determines the format of the remaining CSI report messages. As an example, in the case of LTE, when RI is reported as 1, the rank-1 codebook PMI will be transmitted with one CQI, and when RI is 2, the rank 2 codebook PMI and two CQIs will be transmitted. Since the RI determines the size of the PMI and CQI, the receiver can first decode the RI, and then use it individually to decode the remaining CSI (as mentioned, among other information, including PMI and CQI). Is encoded. In general, rank indication feedback to a network node can be used to select a transmission layer in downlink data transmission. For example, even if the system is configured for transmission mode 3 in LTE specifications (or open loop spatial multiplexing) for a specific UE, and if the same UE reports an indicator of the rank value as "1" to the network node, the network node Starts sending data to the UE in transmit diversity mode. If the UE reports an RI of "2", the network node will start transmitting downlink data in MIMO mode (eg, transmission mode 3 or transmission mode 4 as described in LTE specifications). In general, when the UE experiences a bad signal-to-noise ratio (SNR) and it is difficult to decode transmitted downlink data, an RI value is indicated as “1” to provide an early warning to the network node in the form of feedback. When the UE experiences a good SNR, it sends this information indicating the rank value as "2" to the network node. The CSI report is transmitted to the network node periodically or through a feedback channel in a demand-based CSI (eg, aperiodic CSI report). The network node scheduler uses this information when selecting parameters for scheduling of this particular UE. The network node transmits scheduling parameters to the UE on a downlink control channel called a physical downlink control channel (PDCCH). Thereafter, actual data transfer occurs from the network node to the UE (eg, on the PDSCH).

Still referring to FIG. 6, the reduced CSI feedback procedure 620 may include changes to the CSI feedback protocol. For example, while in battery saving mode, CSI reference signals may still be transmitted, but for example, CSI by not transmitting aperiodic CSI reference signals and correspondingly not providing aperiodic CSI reporting. The number of reference signals can be reduced. This may result in a reduced CSI feedback procedure 620 that includes a reduction in the number of CSI-RSs transmitted to the UE by the network node. As more searches can result in more battery consumption, codebook subset restrictions may also be applied to reduce codebook search efforts. Note that the CSI feedback report is related to the choice of antenna transmission techniques discussed above. The reduced CSI feedback 620 can also reduce, for example, the number of CSI processes in which the UE measures the CSI-RS reference signal from a single transmitting device, and the channel state information reference signal is received from the network node ( For example, by letting the UE measure only CSI-RS from one transmit receive point (TRP) instead of multiple TRPs). The number of CSI-RS configurations can also be reduced.

Still referring to FIG. 6, the reduced physical layer procedure may include a reduced physical uplink shared channel (PUSCH) related procedure 625. In some embodiments of a mobile network (eg, network 106), PUSCH carries user data. Similar to the downlink (eg PDSCH), the uplink scheduling interval is 1 ms. The PUSCH carries control information that may be needed to decode information including transport format indicators and MIMO parameters, in addition to user data. In example embodiments, during the battery power saving mode, the PUSCH procedure can be reduced in similar manners to the simplification for the PDSCH described above. These include, for example, reducing transmission power; Reducing bandwidth for PUSCH resource allocation; Reducing MIMO layers for PUSCH; Reducing a transport block (TB) size for PUSCH; And expanding the timing gap between PUSCH grant and PUSCH transmission (which can provide the UE more time for encoding and processing, between grant and transmit, which can reduce the UE's power usage) It may include.

Still referring to FIG. 6, the reduced physical layer procedure may include a reduced physical uplink control channel (PUCCH) related procedure 630. In exemplary embodiments of a mobile network (eg, network 106), PUCCH control signaling includes uplink data transmitted independently of traffic data, which includes HARQ ACK/NACK, channel quality indicators ( CQI), MIMO feedback (rank indicator, RI; precoding matrix indicator, PMI) and scheduling requests for uplink transmission. This includes one resource block (RB) per transmission at one end of the system bandwidth, followed by RB at the next slot at the opposite end of the channel spectrum, thus using frequency diversity with an estimated gain of 2dB. The PUCCH control region includes all two such RBs. As with other uplink and downlink channels, the reduced PUCCH procedure 630 may include a reduction in the transmit power of the UE's antenna. Additionally, in PUCCH, the self-contained subframe function enables transmission and ACK/NACK in the same subframe. While allowing the transmission of information, in the reduced PUCCH procedure 630, the self-contained subframe function need not be performed while the UE is in battery saving mode.

Still referring to FIG. 6, the reduced physical layer procedure may include a reduced carrier aggregation related procedure 635. In some example embodiments of a mobile network (eg, network 106), carrier aggregation (CA) involves using two or more component carriers (CCs) aggregated to support wider transmission bandwidths. do. The UE (eg, UE 102) may receive or transmit one or multiple CCs simultaneously depending on its capabilities. In the reduced carrier aggregation related procedure 635, the number of CCs aggregated when the UE is in battery saving mode may be reduced. Also, with respect to the reduced carrier aggregation related procedure 635, carrier aggregation is intra-band aggregation where CCs can be aggregated in band, or CCs are within one band and also at least another band. It may include inter-band aggregation that is aggregated within. Here, the reduced procedure may still include carrier aggregation, but may be limited to in-band aggregation only while the UE is in battery saving mode.

Still referring to FIG. 6, the reduced physical layer procedure may include a reduced dual-connectivity related procedure 640. With regard to dual connectivity, in exemplary embodiments of a mobile network (eg, network 106), downlink and uplink physical layer parameter values are set by ue-CategoryDL and ue-CategoryUL fields, respectively. Can be. As an example, for UE DL category 1, the downlink data rate may be 10 Mbps, and the maximum number of layers may be 1. For UE DL category 6, the downlink data rate may be 3000 Mbps, and the maximum number of data layers may be 8. For uplink, for UE UL category 1, the uplink data rate may be 5 Mbps, and the maximum number of data layers may be 1. For UE UL category 8, the uplink data rate may be 1500 Mbps, and the maximum number of data layers may be 4. In example embodiments, the reduced dual-connectivity related procedure 640, which can be activated when the UE is in battery saving mode, results in lower UE DL and UL categories, and thus reduced data rates and layers. May include a reduction in number, resulting in less consumption of the UE's battery.

Still referring to FIG. 6, the reduced physical layer procedure may include a reduced radio resource management (RRM) related procedure 645. In example embodiments of some mobile networks (eg, network 106), one aspect of RRM relates to cellular handover when a UE (eg, UE 102) moves from cell to cell. will be. When a UE connects with its network core (e.g. LTE core network) and maintains the connection when it moves within network coverage (e.g., from one cell to another), it may be referred to as mobility in LTE. have. Mobility in LTE can consist of two variants: intra-frequency mobility (also called intra-RAT) and inter-frequency mobility (also called inter-RAT). have. By intra-frequency mobility, the UE performs handover from one network node (e.g., source network node) to another network node operating at the same frequency used with the source network node. Due to inter-frequency mobility, the UE performs handover from one network node (eg, a source network node) to another network node operating at a different frequency than the source network node. In normal operation, the UE generally monitors frequencies for intra-RAT/RAT mobility. In example embodiments, the reduced RRM-related procedure 645, which can be activated when the UE is in battery saving mode, allows the user equipment to have a first cellular coverage area (eg, a sector) of the first mobile network cellular site. ) From the second mobile network cellular site to the second cellular coverage area. This may include a reduction in the number of frequencies being monitored (eg, the UE is monitoring for intra-RAT/RAT mobility). A reduction in the number of frequencies by the UE, which can reduce energy consumption in the UE's battery because it consumes energy to monitor for more frequencies.)

Additionally, in RRM, several parameters are generally monitored, including reference signal receive power (RSRP), received signal strength indicator (RSSI), reference signal receive quality (RSRQ), signal to interference and noise ratio (SINR). Parameters are measured periodically, and cells are reported at intervals. In example embodiments, the reduced RRM-related procedure 645, which may be activated when the UE is in battery saving mode, may include relaxed RRM measurement requirements. This may be, for example, a decrease in radio resource measurement by the UE within a period. For example, the inter-measurement interval (eg, time between measurements) may be increased so that a UE with low battery charge does not need to measure frequently. As another example, the number of cells to report per interval may be reduced.

Still referring to FIG. 6, the reduced physical layer procedure may include a reduced upper layer related procedure 650. In some embodiments of a mobile network (eg, mobile network 106), bearer channels may be assigned to UEs connected to the network. In short, a bearer is a set of network parameters that determines how data delivered on the channel will be processed. In general, when the UE connects to a network node (e.g., network node 104), the default bearer for best effort service (e.g., unguaranteed bit rate) for data flowing on the default bearer is set. Assigned. Dedicated bearers (providing dedicated tunnels for one or more specific types of traffic). More than one bearer can be established. In example embodiments, the reduced high level related procedure 650 that can be activated when the UE is in battery saving mode may include reducing the number of bearers. Each bearer can consume energy in the UE's battery, so reducing the number of bearers can reduce the UE's battery consumption.

Another reduced upper layer procedure 650 relates to network services such as Enhanced Mobile Broadband (eMBB), ultra reliable and low latency communications (uRLLC), both of which are expected to be provided as part of the 5G network. . EMBB focuses on services with high requirements for bandwidth, such as HD (high definition) videos, VR (virtual reality), and AR (augmented reality). URLLC focuses on latency-sensitive services such as support and automated driving, and remote management. The reduced upper layer related procedure 650, which can be activated when the UE is in battery saving mode, can reduce the number of communication channels used for transmissions. For example, the procedure can be a reduction in the number of bearers associated with EMBB, or uRLLC services, or both. High-level services can consume large amounts of energy at the physical layer, so in battery saving mode the UE can conserve battery charge by focusing on one or the other or not on both.

According to some example embodiments, computing devices (eg, user equipment 102, network node 104) are described in corresponding text, according to various aspects and embodiments of the present specification As shown in the flowcharts shown in FIGS. 7-9, it may be operable to perform exemplary methods and operations. Additionally, the machine-readable storage medium comprising executable instructions that, when executed by a processor, may also enable the performance of the methods and operations described in FIGS. 7 to 9.

In non-limiting embodiments (also referred to as exemplary embodiments), executable instructions that, when executed by the processor and processor, enable execution of exemplary operations 700 as shown in FIG. 7. User equipment that includes memory to store (eg, UE 102).

The operations may include detecting a reduction in the charge level of the battery of the user equipment exceeding the threshold charge level in step 705.

In step 710, the operations may further include enabling a user device to send a first notification to the network device that the user is entering an operation in battery saving mode in response to a decrease in the charge level.

In step 715, the operations may further include receiving an acknowledgment of the first notification from the network device.

The operations may further include determining a reduced group of physical layer operational capabilities smaller than the current group of physical layer operational capabilities in step 720 (eg, the current group is when the UE is not in battery saving mode) Related to physical layer procedures). The reduced group of physical layer operational capabilities is associated with transmissions in a physical uplink channel (eg, physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), etc.) from user equipment to a network device. Can be. The reduced group of physical layer operational capabilities may be associated with a physical downlink channel (eg, physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), etc.) from a network device to user equipment. The reduced group of physical layer operational capabilities may be associated with a channel state information feedback process (eg, CSI feedback procedure) that determines protocol related parameters for transmissions. The reduced group of physical layer operational capabilities can also be associated with radio resource management measurements that monitor signals for the quality of transmissions (eg, RRM related procedures). Exemplary embodiments of reduced physical layer procedures (eg, carrier aggregation related procedures, carrier dual connectivity related procedures, and higher layer related procedures, etc.) according to various aspects and embodiments herein are described above. 6 and further, including accompanying text thereof.

At step 725, the operations may further include enabling a second notification to inform the network device of the reduced group of physical layer operational capabilities.

Operations 700 may end at step 730, and operations may further include enabling user equipment to operate according to a reduced group of physical layer operational capabilities.

In non-limiting embodiments (also referred to as exemplary embodiments), a processor, and when executed by a processor, as shown in FIG. 8, executable to enable execution of exemplary operations 800 A network device (e.g., network node 104) that includes memory for storing instructions. The operations may include receiving a notification from the UE (eg, UE 102) at step 805 that the UE is entering an operation in battery saving mode.

At step 810, operations 800 may include, in response to receiving the notification, enabling sending an acknowledgment of the notification to the user equipment.

In response to receiving the notification, operation 800 at step 815 determines reduced physical layer communication procedures, including procedures less than the physical layer communication procedures used when the equipment is not operating in battery saving mode. It may include steps. Reduced physical layer communication procedures include first transmissions and network over a physical uplink channel (eg, physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), etc.) from user equipment to a user device. Uplink and downlink procedures applicable to the second transmissions over the physical downlink channel from the device to the user equipment (eg, physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), etc.) It can contain. The reduced physical layer communication procedures may include a channel state information feedback procedure (eg, CSI feedback procedure) for determination of first parameters related to a protocol for first transmissions and second transmissions. The reduced physical layer communication procedures include radio resource management procedures applicable to radio resource management measurements used to monitor signals related to the quality of the first transmissions and the second transmissions (eg, RRM related procedures). Can. Exemplary embodiments of reduced physical layer procedures (eg, carrier aggregation related procedures, carrier dual connectivity related procedures, and higher layer related procedures, etc.), according to various aspects and embodiments herein, are also illustrated. 6 and further including its accompanying text.

The operations 800 may end at step 820, and the operations further include reconfiguring the second parameters to enable activation of the reduced physical layer communication procedures by the network device and the UE.

In non-limiting embodiments, as shown in FIG. 9, method 900 may be performed by user equipment (eg, UE 102 ). The method 900 can begin at step 905, and the method can include, by the UE, detecting that the charge level of the battery of the user equipment falls below a threshold.

Method 900, in step 910, in response to a drop in charge level, informs the UE that the user equipment enters an operation in a battery power conservation mode that consumes less battery power than an operation in a standard power operation mode It may further include the step of enabling to transmit to a network node device (eg, network node 104).

In step 915, the method may further include receiving, by the user equipment, an acknowledgment from the network node device of the first notification.

Method 900 transmits, at 920, a signal comprising, by user equipment, a network node device comprising a recommendation of fewer first physical layer communication procedures than second physical layer procedures applicable to operation of standard power mode. It may further include the step of enabling. Recommendation of the first communication procedures is transmission and network node device over a physical uplink channel (eg, physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), etc.) from the user equipment to the network node device. It may be related to transmission through a physical downlink channel (for example, a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH)) to the user equipment. Recommendation of the first communication procedures may involve analysis of channel state information feedback (eg, CSI feedback) to determine parameters related to the protocol for transmissions. The recommendation of the first communication procedures may relate to radio resource management measurements to monitor signals related to the quality of transmissions (eg, RRM related procedures). Exemplary embodiments of reduced physical layer procedures (eg, carrier aggregation related procedures, carrier dual connectivity related procedures, and higher layer related procedures, etc.), according to various aspects and embodiments herein, are also illustrated. 6 and further including its accompanying text.

Referring now to FIG. 10, a schematic block diagram of user equipment (eg, UE 102, etc.), which may be a mobile device 1000 capable of accessing a network, according to some embodiments described herein is shown. do. While mobile handset 1000 is shown here, other devices may be mobile devices, and mobile handset 1000 is merely to be understood to provide an environment for embodiments of the various embodiments described herein. will be. The following discussion is intended to provide a brief, general description of an example of a suitable environment 1000 in which various embodiments may be implemented. The description includes a general context of computer-executable instructions embodied on a machine-readable storage medium, but those skilled in the art may realize that innovation may also be implemented in combination with other program modules and/or as a combination of hardware and software. Will recognize.

In general, applications (eg, program modules) may include routines, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In addition, those skilled in the art may include the methods described herein in single-processor or multiprocessor systems, minicomputers, mainframe computers, as well as personal computers, hand-held computing devices, microprocessor-based or programmable consumer electronic devices. It will be understood that it may be practiced with other system configurations including field, etc., each of which can be operatively connected to one or more related devices.

Computing devices can generally include a variety of machine-readable media. Machine-readable media can be any available media that can be accessed by a computer, and includes volatile and nonvolatile media, removable and non-removable media. By way of example, and not limitation, computer-readable media may include computer storage media and communication media. Computer storage media are volatile and/or nonvolatile media, removable and/or non-volatile media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. Removable media. Computer storage media include RAM, ROM, EEPROM, flash memory or other memory technology, CD ROM, digital video disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices , Or any other medium that can be used to store desired information and can be accessed by a computer.

Communication media generally embodies computer-readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and includes any information delivery media. The term "modulated data signal" means a signal having one or more of its characteristics set or changed in such a way as to encode information in the signal. As a non-limiting example, communication media includes wired media such as a wired network or direct wired connection, and wireless media such as acoustic, RF, infrared and other wireless media. Combinations of any of the above should also be included within the scope of computer-readable media.

The handset 1000 includes a processor 1002 for controlling and processing all onboard operations and functions. The memory 1004 interfaces with the processor 1002 and one or more applications 1006 (eg, video player software, user feedback component software, etc.) for storage of data. Other applications may include speech recognition of predetermined speech commands that enable the initiation of user feedback signals. Applications 1006 may be stored in memory 1004 and/or firmware 1008, and may be executed by processor 1002 from one or both of memory 1004 and/or firmware 1008. The firmware 1008 may also store a start code for executing the handset 100 upon initialization. The communication component 1010 interfaces with the processor 1002 to enable wired/wireless communication with external systems, such as cellular networks, VoIP networks, and the like. Here, the communication component 1010 also provides suitable cellular transceivers 1011 (eg, global GSM transceivers) and/or unauthorized transceivers 1013 (eg, Wi-Fi, WiMax) for corresponding signal communications. It can contain. The handset 1000 can be a device such as a mobile phone, a PDA with mobile communication capabilities, and messaging-centric devices. The communication component 1010 also enables reception of communications from terrestrial wireless networks (eg, broadcast), digital satellite wireless networks, and Internet-based wireless service networks.

The handset 1000 includes a display 1012 for displaying texts, images, video, phone functions (eg, caller ID function), setting functions, and user input. For example, the display 1012 may be referred to as a “screen” that can accommodate presentation of multimedia content (eg, music metadata, messages, wallpapers, graphics, etc.). The display 1012 can also display video and enable creation, editing and sharing of video citations. Serial I/O interface 1014 provides wired and/or wireless serial communication (eg, USB and/or IEEE 1394) through hardwired connections and other serial input devices (eg, keyboard, keypad, and mouse). ) In communication with the processor 1002. This, for example, updates the handset 1000 and assists in troubleshooting. Audio capabilities are provided with an audio I/O component 1016, which may include, for example, a speaker for output of audio signals associated with an indication that the user pressed an appropriate key or key combination to initiate a user feedback signal. Can be. The audio I/O component 1016 also enables input of audio signals through a microphone to record data and/or telephone voice data and input voice signals for telephone conversations.

The handset 1000 accepts a subscriber identity component (SIC) in the form factor of a card subscriber identification module (SIM) or a universal SIM 1020, and a slot interface 1018 for interfacing the SIM card 1020 with the processor 1002 ). However, it will be understood that the SIM card 1020 can be manufactured with the handset 1000 and can be updated by downloading data and software.

The handset 1000 receives IP data through the communication component 1010 through an ISP or broadband cable provider to accommodate IP traffic from an IP network, such as the Internet, corporate intranet, home network, personal area network, and the like. Can handle traffic. Thus, VoIP traffic can be used by handset 1000 and IP-based multimedia content can be received in an encoded or decoded format.

A video processing component 1022 (eg, camera) may be provided to decode the encoded multimedia content. Video processing component 1022 can help enable creation, editing, and sharing of video citations. The handset 1000 also includes a power source 1024 in the form of batteries and/or an AC power subsystem, the power source 1024 being external power system or charging equipment (not shown) by the power I/O component 1026. Interface).

The handset 1000 may also include a video component 1030 for processing the received video content and recording and transmitting the video content. For example, video component 1030 may enable creation, editing, and sharing of video citations. The location tracking component 1032 enables positioning the handset 1000 geographically. As described above, this can occur when the user starts the feedback signal automatically or manually. User input component 1034 enables the user to initiate a quality feedback signal. User input component 1034 may also enable creation, editing, and sharing of video citations. User input component 1034 may include such conventional input device technologies, such as, for example, a keypad, keyboard, mouse, stylus pen, and/or touch screen.

Referring back to applications 1006, hysteresis component 1036 enables analysis and processing of hysteresis data, which is used to determine when to associate with an access point. A software trigger component 1038 may be provided that enables triggering of the hysteresis component 1038 when the Wi-Fi transceiver 1013 detects a beacon of the access point. The session enable protocol (SIP) client 1040 allows the handset 1000 to support SIP protocols and register the subscriber with a SIP registration server. Applications 1006 may also include a client 1042 that provides at least the ability to discover, play, and store multimedia content, such as music.

As indicated above with respect to the communication component 1010, the handset 1000 includes an indoor network wireless transceiver 1013 (eg, a Wi-Fi transceiver). This function supports indoor wireless links such as IEEE 802.11 for the handset 1000. The handset 1000 can accommodate at least a satellite radio service through a handset capable of combining wireless voice and digital radio chipsets into a single handheld device.

Referring now to FIG. 17, a block diagram of a computer 1700 operable to perform functions and operations performed in the described exemplary embodiments is shown. For example, a network node (eg, network node 104) may include components as described in FIG. 17. The computer 1700 can provide networking and communication capabilities between a wired or wireless communication network and a server and/or communication device. To provide additional context for its various aspects, FIG. 17 and the following discussion are directed to a suitable computing environment in which various aspects of innovation can be implemented to enable establishment of transactions between entities and third parties. It is intended to provide a brief, general description. Although the above description is within the general context of computer-executable instructions executable on one or more computers, those skilled in the art will recognize that innovations may be implemented in combination with other program modules and/or in combination with hardware and software.

Generally, program modules include routines, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In addition, one of ordinary skill in the art, as well as personal computers, uniprocessor or multiprocessor computer systems, minicomputers, mainframe computers, the methods of the present invention, each of which can be operatively connected to one or more related devices, It will be understood that it may be implemented in other computer system configurations including hand-held computing devices, microprocessor-based or programmable consumer electronic devices, and the like.

The illustrated aspects of innovation may also be practiced in distributed computing environments where specific tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

Computing devices generally include a variety of media, which may include computer-readable storage media or communication media, and the two terms are used differently from each other as follows.

Computer readable storage media can be any available storage media that can be accessed by a computer, and includes volatile and nonvolatile media, removable and non-removable media. By way of example, and not limitation, computer readable storage media may be implemented in connection with any method or technology for storage of information such as computer readable instructions, program modules, structured data, or unstructured data. . Computer-readable storage media include RAM, ROM, EEPROM, flash memory or other memory technology, CD ROM, digital versatile disk (DVD) or other optical disk storage device, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage device Or other types of and/or non-transitory media that can be used to store desired information. Computer-readable storage media can be accessed by one or more local or remote computing devices for various operations on information stored by the media, such as through access requests, queries or other data retrieval protocols.

Communication media may embody computer readable instructions, data structures, program modules or other structured or unstructured data in a modulated data signal, eg, a data signal such as a carrier wave or other transport mechanism, and any information Delivery or transportation media. The term "modulated data signal" or signals refers to a signal having one or more characteristics set or changed in this way to encode information into one or more signals. As a non-limiting example, communication media includes wired media such as a wired network or direct wired connection, and wireless media such as acoustic, RF, infrared and other wireless media.

Referring to FIG. 11, implementing various aspects described herein with respect to devices (eg, network node 104) may include a computer 1100, and the computer 1100 may include a processing unit ( 1104), system memory 1106 and system bus 1108. System bus 1108 connects system components, including but not limited to system memory 1106, to processing unit 1104. The processing unit 1104 can be any of a variety of commercially available processors. Dual microprocessors and other multi-processor architectures may also be employed as the processing unit 1104.

System bus 1108 can be interconnected to a memory bus (with or without a memory controller), a peripheral bus, and a local bus using any of a variety of commercially available bus architectures. It can be a bus structure. System memory 1106 includes read-only memory (ROM) 1127 and random access memory (RAM) 1112. A basic input/output system (BIOS) is stored in a non-volatile memory 1127 such as ROM, EPROM, EEPROM, and the BIOS transfers information between elements within the computer 1100, such as during startup. Includes basic routines to help you do this. RAM 1112 may also include high-speed RAM, such as static RAM for caching data.

The computer 1100 further includes an internal hard disk drive (HDD) 1114 (eg, EIDE, SATA), and the internal hard disk drive 1114 also includes suitable chassis (not shown), magnetic Read the floppy disk drive (FDD) 1116 (e.g., for reading from or writing to the removable diskette 1118) and the optical disk drive 1120 (e.g., CD-ROM disk 1122), Or for external use (for reading from or writing to other high capacity optical media such as DVDs). The hard disk drive 1114, the magnetic disk drive 1116, and the optical disk drive 1120 are respectively connected to the system bus by a hard disk drive interface 1124, a magnetic disk drive interface 1126, and an optical drive interface 1128. 1108. The interface 1124 for external drive implementations includes at least one or both of Universal Serial Bus (USB) and IEEE 1294 interface technologies. Other external drive connection technologies are within consideration of the innovation of the present invention.

Drives and their associated computer-readable media provide non-volatile storage of data, data structures, computer-executable instructions, and the like. For the computer 1100, drives and media accommodate storage of any data in a suitable digital format. The above description of computer readable media refers to removable optical media such as HDDs, removable magnetic diskettes, and CDs or DVDs, but the computer (such as zip drives, magnetic cassettes, flash memory cards, cartridges, etc.) by those skilled in the art It will be appreciated that other types of media readable by 1100) can also be used in the exemplary operating environment, and that any such media includes computer-executable instructions for performing the disclosed methods of innovation.

A number of program modules may be stored in drives and RAM 1112, including an operating system 1130, one or more application programs 1132, other program modules 1134 and program data 1136. All or portions of systems, applications, modules and/or data may also be cached in RAM 1112. It will be understood that innovation can be implemented with various commercially available operating systems or combinations of operating systems.

The user may enter commands and information into the computer 1100 through one or more wired or wireless input devices, for example, pointing devices such as a keyboard 1138 and a mouse 1140. Other input devices (not shown) may include a microphone, IR remote control, joystick, game pad, stylus pen, touch screen, and the like. These and other input devices are often connected to processing unit 1104 through input device interface 1142 connected to system bus 1108, but other such as parallel port, IEEE 2394 serial port, game port, USB port, IR interface, etc. It can be connected by interfaces.

The monitor 1144 or other type of display device is also connected to the system bus 1108 through an interface such as a video adapter 1146. In addition to the monitor 1144, the computer 1100 generally includes other peripheral output devices (not shown), such as speakers, printers, and the like.

Computer 1100 may operate in a network environment using logical connections by wired and/or wireless communications to one or more remote computers, such as remote computer(s) 1148. The remote computer 1148 may be a workstation, server computer, router, personal computer, portable computer, microprocessor-based entertainment device, peer device, or other common network node, and generally includes many or all of the elements described in connection with the computer. Although included, for simplicity, only memory/storage device 1150 is shown. The illustrated logical connections include a wired/wireless connection to a local area network (LAN) 1152 and/or larger networks, such as a wide area network (WAN) 1154. These LAN and WAN networking environments are common in offices and companies, and enable enterprise-wide computer networks such as intranets, all of which can connect to a global communication network, such as the Internet.

When used in a LAN networking environment, the computer 1100 is connected to the local network 1152 via a wired and/or wireless communication network interface or adapter 1156. The adapter 1156 can enable wired or wireless communication to the LAN 1152, which can also include a wireless access point disposed thereon to communicate with the wireless adapter 1156.

When used in a WAN networking environment, the computer 1100 can include a modem 1148 or connect to a communication server on the WAN 1154, or have other means to establish communication over the WAN 1154, such as the Internet. Can be. The modem 1158, which may be an internal or external and wired or wireless device, is connected to the system bus 1108 via an input device interface 1142. In a networked environment, program modules depicted for a computer or portions thereof may be stored in the remote memory/storage device 1150. It will be appreciated that the network connections shown are exemplary and other means of establishing a communication link between computers may be used.

The computer is any wireless devices or entities operatively disposed in wireless communication, such as a printer, scanner, desktop and/or portable computer, portable data assistant, communication satellite, any equipment or wirelessly detectable tag (E.g., kiosks, newsstands, toilets), and telephones. This includes at least Wi-Fi and Bluetooth™ wireless technologies. Thus, the communication can be of a predetermined structure, as in a conventional network, or simply an ad hoc communication between at least two devices.

Wi-Fi, or wireless fidelity (WiFi), allows access to the Internet without wires at home from a sofa, a bed in a hotel room, or a meeting room at work. Wi-Fi allows these devices, for example, computers to be indoors and outdoors; It is a wireless technology similar to that used in cell phones that allow data to be transmitted and received anywhere within the base station range. Wi-Fi networks use a wireless technology called IEEE802.11 (a, b, g, n, etc.) to provide secure, reliable, and fast wireless connectivity. Wi-Fi networks can be used to connect computers to each other, to the Internet and to wired networks (using IEEE802.3 or Ethernet). Wi-Fi networks operate in unlicensed 2.4 and 5 GHz radio bands, for example, with 11Mbps (802.11b) or 54Mbps (802.11a) data rates or with products that include two bands (dual band). Thus, the networks can provide real performance similar to the basic "10BaseT" wired Ethernet networks used in many offices.

As used herein, the terms "system", "component", "interface", and the like are generally intended to refer to a computer-related entity having one or more specific functions or an entity related to an operating machine. The entities disclosed herein can be hardware, a combination of hardware and software, software, or running software. For example, a component can be, but is not limited to, a process, processor, object, executable, thread of execution, program, and/or computer running on a processor. As an example, both the application running on the server and the server may be a component. One or more components can reside within a process and/or thread of execution, and a component can be located on one computer and/or distributed between two or more computers. These components can also execute from various computer readable storage media having various data structures stored thereon. The components can communicate via local and/or remote processes, such as in accordance with a signal having one or more data packets (eg, in a local system, distributed system, and/or via a signal with other systems and the Internet). Data from one component that interacts with other components over the same network). As another example, a component may be a device having a specific function provided by mechanical parts operated by electrical or electronic circuits operated by software or firmware application(s) executed by a processor, and the processor is a device. It can be internal or external, and run at least part of a software or firmware application. As another example, a component can be a device that provides specific functionality through electronic components without mechanical parts, and the electronic components are internally implemented to execute software or firmware that at least partially imparts the functionality of the electronic components. It may include a processor. The interface may include input/output (I/O) components as well as processor, application, and/or API components.

Also, the disclosed subject matter may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques to generate software, firmware, hardware, or any combination thereof to control a computer to implement the disclosed subject matter. Can. As used herein, the term “manufactured article” is intended to include a computer program accessible from any computer readable device, computer readable carrier, or computer readable media. For example, computer readable media include magnetic storage devices, such as hard disks; Floppy disk; Magnetic strip(s); Optical discs (eg, compact disc (CD), digital video disc (DVD), Blu-ray Disc™ (BD)); Smart card; Flash memory devices (eg, cards, sticks, key drives); And/or a virtual device that emulates a storage device and/or any of the above computer readable media.

As employed herein, the term "processor" includes single-core processors; Single-processors with software multithread execution capability; Multi-core processors; Multi-core processors with software multi-thread execution capability; Multi-core processors with hardware multithread technology; Parallel platforms; And parallel platforms with distributed shared memory, but may not substantially refer to any computing processing unit. Additionally, processors include integrated circuits, application specific integrated circuits (ASICs), digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic controllers (PLCs), complex programmable logic devices (CPLDs), and discrete gates Or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. Processors can use nano-scale architectures such as molecular and quantum dot based transistors, switches and gates to optimize space usage or improve the performance of user equipment. The processor may also be implemented as a combination of computing processing units.

In this specification, terms such as "storage", "data storage", "data storage device", "database", "storage", "queue", and virtually any other information related to the operation and function of the component are stored. Components refer to "memory components" or entities implemented in "memory" or components including memory. It will be understood that the memory components described herein can be volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. Further, memory components or memory elements may be removable or stationary. Further, the memory can be internal or external to the device or component, or removable or stationary. Memory may include various types of media readable by a computer, such as hard-disk drives, zip drives, magnetic cassettes, flash memory cards or other types of memory cards, cartridges, and the like.

By way of example, and not limitation, non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM), or flash memory. . Volatile memory can include random access memory (RAM), which acts as external cache memory. By way of example, and not limitation, RAM is synchronous RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double-speed SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct rambus RAM. It is available in many forms such as (DRRAM). Additionally, the disclosed memory components of systems or methods herein are intended to include, but are not limited to, these and any other suitable types of memory.

In particular and with regard to the various functions performed by the components, devices, circuits, systems, etc. described above, the terms used to describe these components (including references to “means”) are , Unless indicated otherwise, is not structurally identical to the disclosed structure, but is intended to correspond to any component that performs a specified function (eg, functional equivalent) of the described component, as illustrated herein Functions in the illustrated exemplary aspects of the disclosed embodiments. In this regard, it will also be appreciated that embodiments include a computer-readable medium having computer-executable instructions for performing operations and/or events of various methods as well as a system.

Computing devices generally include a variety of media, which may include computer readable storage media and/or communication media, where the two terms are used differently herein as follows. Computer readable storage media can be any available storage media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. By way of example, computer readable storage media may be implemented in connection with any method or technology for storage of information such as computer readable instructions, program modules, structured data or unstructured data, but is not limited thereto. It is not. Computer-readable storage media include RAM, ROM, EEPROM, flash memory or other memory technology, CD ROM, digital versatile disk (DVD) or other optical disk storage device, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage device Or other types of and/or non-transitory media that can be used to store desired information. Computer-readable storage media can be accessed by one or more local or remote computing devices for various operations on information stored by the media, such as through access requests, queries or other data retrieval protocols.

On the other hand, communication media generally embody computer readable instructions, data structures, program modules or other structured or unstructured data in a modulated data signal, for example a data signal such as a carrier wave or other transport mechanism. , Any information delivery or transmission media. The term “modulated data signal” or signals refers to a signal having one or more of its characteristics set or altered in this way to encode information into one or more signals. By way of example, communication media include, but are not limited to, wired media such as a wired network or direct wired connection, and wireless media such as acoustic, RF, infrared and other wireless media.

In addition, terms such as “user equipment”, “user device”, “mobile device”, “mobile”, station, “access terminal”, “terminal”, “handset”, and similar terms are generally referred to as data, control, voice. , Wireless device used by a subscriber or user of a wireless communication network or service to receive or deliver video, sound, gaming, or virtually any data-stream or signaling-stream. The foregoing terms are used interchangeably in this specification and related drawings. Similarly, the terms "access point", "node B", "base station", "evolved node B", "cell", "cell site", etc. can be used interchangeably in this application, and the subscriber station Refers to a wireless network component or device that provides and receives data, control, voice, video, sound, gaming, or substantially any data-stream or signaling-stream from a set of them. The data and signaling streams can be packetized or frame-based flows. In the present specification and drawings, context or explicit distinction includes access points or base stations that provide and receive data from a mobile device in an outdoor environment, and access points operating in a limited, primarily indoor environment overlaid in an outdoor area, or It is noted that it provides differentiation for base stations. The data and signaling streams can be packetized or frame-based flows.

Also, the terms "user", "subscriber", "customer", "consumer", etc. are employed interchangeably throughout this specification, unless the context warrants specific distinction(s) among the terms. These terms are human entities, related devices, or automated components that are supported through artificial intelligence (eg, the ability to infer based on complex mathematical forms) that can provide simulated vision, acoustic recognition, etc. It will be understood that can refer to. Also, the terms "wireless network" and "network" are used interchangeably in this application, and such distinction becomes apparent when the context in which the term is used guarantees distinction for clarity.

In addition, the word "exemplary" is used herein to mean the role of an example, instance, or example. It is not necessarily construed as being advantageous or advantageous over other aspects or designs described herein as “exemplary”. Rather, the use of the word exemplary is intended to present concepts in a concrete manner. As used herein, the term "or" is intended to mean a generic "or" rather than an exclusive "or". That is, unless otherwise specified or contextually obvious, "X employs A or B" is intended to mean any natural inclusive substitutions. That is, X employs A; X employs B; Or, if X employs both A and B, "X employs A or B" is satisfied in any of the aforementioned cases. Also, singular expressions as used in the present application and the appended claims should be construed to mean "one or more", unless otherwise specified or apparent from the context to indicate the singular form.

Further, a particular feature may be disclosed for only one of several implementations, but this feature may be combined with one or more other features of other implementations that may be desirable and beneficial to any given or particular application. Also, as long as the terms "comprises" and "comprising" and variations thereof are used in the detailed description or claims, these terms are intended to be included in a similar manner to the term "comprising".

The above descriptions of the various embodiments of this specification and those described in the corresponding drawings and summary are described herein for illustrative purposes, and it is intended to exhaustively or limit the disclosed embodiments to the precise forms disclosed. no. Those skilled in the art can recognize that other embodiments with modifications, substitutions, combinations, and additions can be implemented to perform the same, similar, alternative, or alternative functions of the disclosed subject matter, and therefore are within the scope of the present disclosure. It will be understood that it is considered in. Accordingly, the disclosed subject matter is not limited to any single embodiment described herein, but rather should be interpreted in breadth and scope in accordance with the claims below.

Claims (20)

For user equipment:
Processor; And
When executed by the processor, it includes a memory that stores executable instructions that enable execution of operations, the operations being:
Detecting a decrease in the battery charge level of the user equipment that transitions to a threshold charge level;
In response to the reduction in the charge level, making it possible to send a first notification to the network device that the user equipment is entering an operation in battery saving mode;
Receiving an acknowledgment of the first notification from the network device;
Determine a reduced group of physical layer operational capabilities smaller than the current group of physical layer operational capabilities, the reduced group of physical layer operational capabilities being:
Physical uplink channel from the user equipment to the network device and transmissions on the physical downlink from the network device to the user equipment,
A channel status information feedback process to determine parameters related to the protocol for transmissions, and
Related to radio resource management measurements that monitor signals for the quality of transmissions,
Enabling transmission of a second notification informing the network device of the reduced group of physical layer operational capabilities; And
And enabling the user equipment to operate according to the reduced group of physical layer operational capabilities. According to claim 1,
The reduced group of physical layer operational capabilities is also associated with measurements of a channel state information reference signal from a single transmitting device, the channel state information reference signal being received from the network device. According to claim 1,
The reduced group of physical layer operational capabilities is also related to a reduction in the number of transmission layers used in a multiple input multiple output antenna transmission protocol. According to claim 1,
The reduced group of physical layer operational capabilities is also related to a reduction in the amount of bandwidth allocated to the user equipment from the network device. According to claim 1,
The reduced group of physical layer operational capabilities is also related to a reduction in the transmit power of the antenna of the user equipment used to transmit data to the network device. According to claim 1,
The reduced group of physical layer operational capabilities is also related to a reduction in the number of blind decoding operations performed by the user equipment. According to claim 1,
The reduced group of physical layer operational capabilities is also related to a reduction in the amount of radio resource measurements by the user equipment within a period. For network devices:
Processor; And
When executed by the processor, it includes a memory that stores executable instructions that enable execution of operations, the operations being:
Receiving a notification from the user equipment that the user equipment is entering an operation in a battery saving mode;
In response to receiving the notification, making it possible to send an acknowledgment of the notification to the user equipment;
Determine reduced physical layer communication procedures that include fewer procedures than the physical layer communication procedures used when the user equipment is not operating in battery saving mode, and the reduced physical layer communication procedures are:
Uplink and downlink procedures applicable to first transmissions over the physical uplink channel from the user equipment to the network device and second transmissions over the physical downlink channel from the network device to the user equipment,
A channel state information feedback procedure for determination of first parameters related to a protocol for the first transmissions and the second transmissions, and
Including a radio resource management procedure applicable to radio resource management measurements used to monitor signals related to the quality of the first transmissions and the second transmissions; And
And reconfiguring second parameters to enable activation of the reduced physical layer communication procedures by the network device and the user equipment. The method of claim 8,
And the reduced physical layer communication procedures further include a blind decoding procedure that reduces the number of blind decoding operations to be performed by the user equipment. The method of claim 8,
And the reduced physical layer communication procedures further comprise a user equipment transmit power procedure that reduces the transmit power of the antenna of the user equipment used to transmit data to the network device. The method of claim 8,
And the reduced physical layer communication procedures further include a radio resource measurement procedure that reduces the amount of radio resource measurements taken by the user equipment within a period of time. The method of claim 8,
The channel status information feedback procedure further comprises a reduction in the number of channel status information reference signals transmitted by the network device to the user equipment. The method of claim 8,
And the reduced physical layer communication procedures further include a reduction in the number of communication channels used for the first transmissions and the second transmissions. In the way:
Detecting, by the user equipment including the processor, that the charge level of the battery of the user equipment falls below a threshold;
In response to a drop in the charge level, sending, by the user equipment, a notification to the network node device that the user equipment is entering an operation of a battery power conservation mode that consumes less battery power than the operation of the standard power mode. Enabling;
Receiving, by the user equipment, an acknowledgment from the network node device of the first notification; And
Enabling the signal to be transmitted by the user equipment to the network node device, including a recommendation of fewer first physical layer communication procedures than second physical layer procedures applicable to operation of the standard power mode. The recommendations of the first communication procedures include:
Transmission over the physical uplink channel from the user equipment to the network node device and transmission over the physical downlink channel from the network node device to the user equipment,
Analysis of channel state information feedback to determine parameters related to the protocol for the transmissions, and
And radio resource management measurements for monitoring signals related to the quality of the transmissions. The method of claim 14,
The signal includes a radio resource control signal. The method of claim 14,
The recommendations of the first physical layer communication procedures include an increase in the amount of time the network node device waits before sending a request for retransmission of data transmitted by the user equipment to the network node device in an error checking protocol. How to. The method of claim 14,
The recommendation of the first physical layer communication procedures includes a transmission protocol that reduces the number of transmission layers used in a multiple input multiple output antenna transmission protocol. The method of claim 14,
The recommendation of the first physical layer communication procedures includes a reduction in the transmission block size for transmission on the physical uplink channel and transmission on the physical downlink channel, the transmission block size of data determined to be transmitted in a time frame. Method related to quantity. The method of claim 14,
The recommendation of the first physical layer communication procedures includes a reduction in bandwidth for transmission on the physical uplink channel and transmission on the physical downlink channel, where the data is transmitted between the user equipment and the network node device. The method, which indicates the speed at which it becomes. The method of claim 14,
The recommendation of the first physical layer communication procedures reduces the number of frequencies the user equipment monitors movements from a first cellular coverage area of a first mobile network cellular site to a second cellular coverage area of a second mobile network cellular site. How to include.

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